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Paladinen [302]
3 years ago
11

The formula for the nth squaresquare number is Upper S Subscript n Baseline equals n squaredSn=n2. Use the formula to find the 9

9th squaresquare number.
Mathematics
1 answer:
AURORKA [14]3 years ago
7 0

Answer:

9801

Step-by-step explanation:

Given the general term for calculating the nth term of a sequence;

Sn = n²

Where n is the number of terms.

To find the 99th term of the sequence using the nth term of the sequence;

Since we want to get the 99th term, this means that n = 99. Substituting n = 99 into the formula we will have;

S99 = 99²

S99 = 9,801

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Alx+b) = 4x + 10
Leokris [45]

Answer:

a=4, b=5/2

Step-by-step explanation:

Assuming the given equation is

a(x + b) = 4x + 10

We expand the left hand side to get:

ax + ab = 4x + 10

If this equation must have infinitely many solutions, then

ax = 4x \\  \implies \: a = 4

Also we must have

ab = 10

Put a=4 to get:

4b = 10

b =  \frac{10}{4}  =  \frac{5}{2}

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3 years ago
Two types of plastics are suitable for an electronics component manufacturer to use. The breaking strength of this plastic is im
UNO [17]

Answer:

a. We fail reject to the null hypothesis because zo = -5.84 < 1.65 = zα and P-value = 1 (approximately)

b. The confidence Interval for u1 - u2 is; 6.79 ≤ u1 - u2

c. The power of the test = 1 -

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Step-by-step explanation:

Given

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X = 162.5; Y = 155.0

Let X1, X2....Xn be a random sample from Population 1

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We assume that both population are normal and the two are independent.

Therefore, the test statistic

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See attachment for explanation

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4vir4ik [10]
The answer is 7, your welcome :).
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Solve to find the value of x.
aleksley [76]
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I'm sorry if this is wrong!

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